Is x + y < 1?
(1) x < 8/9
(2) y < 1/8
Thought the answer was (C) since I tried picking numbers. However, I might have overlooked another possibility.
Thanks in advance,
Dave
Is x + y < 1
This topic has expert replies
- mdavidm_531
- Senior | Next Rank: 100 Posts
- Posts: 66
- Joined: Mon Jun 07, 2010 3:12 am
- Thanked: 10 times
GMAT/MBA Expert
- Anurag@Gurome
- GMAT Instructor
- Posts: 3835
- Joined: Fri Apr 02, 2010 10:00 pm
- Location: Milpitas, CA
- Thanked: 1854 times
- Followed by:523 members
- GMAT Score:770
(1) alone is NOT sufficient.mdavidm_531 wrote:Is x + y < 1?
(1) x < 8/9
(2) y < 1/8
Thought the answer was (C) since I tried picking numbers. However, I might have overlooked another possibility.
Thanks in advance,
Dave
(2) alone is NOT sufficient.
Combining (1) and (2), x + y < (8/9 + 1/8) implies x + y < 73/72 or x + y < (1 + 1/72), which implies x + y may or may not be less than 1.
The correct answer is E.
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)
Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)
Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/